NEAR FIELD GROUND MOTION -...

34
NEAR FIELD GROUND MOTION CHARACTERISTICS AND EFFECTS

Transcript of NEAR FIELD GROUND MOTION -...

NEAR FIELD GROUND MOTION

CHARACTERISTICS AND EFFECTS

RELATIONSHIP BETWEEN SITE AZIMUTH AND DIRECTIVITY

SPECTRAL AMPLIFICATION WITH DIRECTIVITY

PULSE SIMULATION

PULSE SIMULATION

AMPLITUDE AND PERIOD AMPLIFICATION WITH MAGNITUDE

PERIOD AMPLIFICATION WITH MAGNITUDE

Period-magnitude relationship

AMPLITUDE ATTENUATION

NUMBER OF CYCLES

EFFECT OF CYCLE NUMBER

VELOCITY PULSE PERIOD

PREDOMINANT SPECTRAL VELOCITY AND PULSE PERIOD

TABAS , Iran 1978, Mw=7.1

BELL SHAPED AMPLIFICATION AROUND Tp

BELL SHAPED AMPLIFICATION AROUND Tp

BELL SHAPED AMPLIFICATION AND DISPLACEMENT SPECTRA

INELASTIC VERSUS ELASTIC DISPLACEMENT

INELASTIC VERSUS ELASTIC DISPLACEMENT qy=Rs

INELASTIC VERSUS ELASTIC DISPLACEMENT

INELASTIC VERSUS ELASTIC DISPLACEMENT

ATHENS 1999 EARTHQUAKE